DuckCroc (seen as a model) had a long, smooth, sensitive nose to poke through vegetation, as well as hook-shaped teeth to snag frogs and small fish in shallow water, paleontologists announced in November 2009.

"Gondwana had lots of real oddballs," said Hans Dieter-Sues, a paleontologist at the National Museum of Natural History in Washington, D.C., who was not involved in the research.

"For somebody who has studied a lot of fossil crocodilyforms, I'm fascinated by these creatures," Sues added.